[INFO] fetching crate fatr 0.2.0...
[INFO] testing fatr-0.2.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate fatr 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate fatr 0.2.0
[INFO] finished tweaking crates.io crate fatr 0.2.0
[INFO] tweaked toml for crates.io crate fatr 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fatr 0.2.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.5.10 (available: v0.14.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dae8afa9ef1f3a6ee5f130763a6d28e76e6a5e3d967e221ea3107f9cc39454b9
[INFO] running `Command { std: "docker" "start" "-a" "dae8afa9ef1f3a6ee5f130763a6d28e76e6a5e3d967e221ea3107f9cc39454b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dae8afa9ef1f3a6ee5f130763a6d28e76e6a5e3d967e221ea3107f9cc39454b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dae8afa9ef1f3a6ee5f130763a6d28e76e6a5e3d967e221ea3107f9cc39454b9", kill_on_drop: false }`
[INFO] [stdout] dae8afa9ef1f3a6ee5f130763a6d28e76e6a5e3d967e221ea3107f9cc39454b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e221e67409a5cdf663c2a536b73b56255bc75403e34286500204eccc042e50ec
[INFO] running `Command { std: "docker" "start" "-a" "e221e67409a5cdf663c2a536b73b56255bc75403e34286500204eccc042e50ec", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling fatr v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/utils.rs:6:11
[INFO] [stdout]    |
[INFO] [stdout]  6 |         ));
[INFO] [stdout]    |           ^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/commands/add.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     expect_args!(args, 2);
[INFO] [stdout]    |     --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: `#[deny(semicolon_in_expressions_from_macros)]` (part of `#[deny(future_incompatible)]`) on by default
[INFO] [stdout]    = note: this error originates in the macro `errorf` which comes from the expansion of the macro `expect_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/utils.rs:6:11
[INFO] [stdout]    |
[INFO] [stdout]  6 |         ));
[INFO] [stdout]    |           ^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/commands/add.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |         return Err(errorf!("file {} already exists", file_name));
[INFO] [stdout]    |                    -------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this error originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/commands/add.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         try!(image.write_data_sector(entry_index, &chunk));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]  --> src/utils.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 |         ));
[INFO] [stdout]   |           ^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/commands/detail.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     expect_args!(args, 2);
[INFO] [stdout]   |     --------------------- in this macro invocation
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]   = note: this error originates in the macro `errorf` which comes from the expansion of the macro `expect_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]  --> src/utils.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 |         ));
[INFO] [stdout]   |           ^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/commands/list.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     expect_args!(args, 1);
[INFO] [stdout]   |     --------------------- in this macro invocation
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]   = note: this error originates in the macro `errorf` which comes from the expansion of the macro `expect_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::add::add_file as add`
[INFO] [stdout]  --> src/commands/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use self::add::add_file as add;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::detail::detail_file as detail`
[INFO] [stdout]  --> src/commands/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use self::detail::detail_file as detail;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::list::list_files as list`
[INFO] [stdout]  --> src/commands/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use self::list::list_files as list;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         try!(file.read_exact(&mut image.boot_sector));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |         try!(file.read_exact(&mut image.fat_1));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |         try!(file.read_exact(&mut image.fat_2));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         try!(file.read_exact(&mut image.root_dir));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         try!(file.read_exact(&mut image.data_area));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         try!(file.write_all(&self.boot_sector));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         try!(file.write_all(&self.fat_1));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |         try!(file.write_all(&self.fat_2));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |         try!(file.write_all(&self.root_dir));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |         try!(file.write_all(&self.data_area));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/fat/image.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             try!(entry.set_filename(filename));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utils.rs:6:11
[INFO] [stdout]     |
[INFO] [stdout]   6 |         ));
[INFO] [stdout]     |           ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/fat/image.rs:182:24
[INFO] [stdout]     |
[INFO] [stdout] 182 |             return Err(errorf!("sector {} too high to write to", sector));
[INFO] [stdout]     |                        ------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this error originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/utils.rs:6:11
[INFO] [stdout]    |
[INFO] [stdout]  6 |         ));
[INFO] [stdout]    |           ^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/fat/root_entry.rs:60:24
[INFO] [stdout]    |
[INFO] [stdout] 60 |             return Err(errorf!("bad filename: \"{}\"", filename));
[INFO] [stdout]    |                        ----------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this error originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/utils.rs:6:11
[INFO] [stdout]    |
[INFO] [stdout]  6 |         ));
[INFO] [stdout]    |           ^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:28:15
[INFO] [stdout]    |
[INFO] [stdout] 28 |         error(errorf!("command \"{}\" not recognized", command));
[INFO] [stdout]    |               ------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this error originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/commands/add.rs:10:23
[INFO] [stdout]    |
[INFO] [stdout] 10 |     -> Result<(), Box<error::Error>>
[INFO] [stdout]    |                       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 10 |     -> Result<(), Box<dyn error::Error>>
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/commands/detail.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 |     -> Result<(), Box<error::Error>>
[INFO] [stdout]   |                       ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 |     -> Result<(), Box<dyn error::Error>>
[INFO] [stdout]   |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/commands/list.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 |     -> Result<(), Box<error::Error>>
[INFO] [stdout]   |                       ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 |     -> Result<(), Box<dyn error::Error>>
[INFO] [stdout]   |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/commands/mod.rs:11:49
[INFO] [stdout]    |
[INFO] [stdout] 11 | type Command = fn (&[String]) -> Result<(), Box<error::Error>>;
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 11 | type Command = fn (&[String]) -> Result<(), Box<dyn error::Error>>;
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:42:19
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn error(err: Box<error::Error>) {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn error(err: Box<dyn error::Error>) {
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fat/image.rs:48:30
[INFO] [stdout]    |
[INFO] [stdout] 48 |         -> Result<Image, Box<error::Error>>
[INFO] [stdout]    |                              ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 48 |         -> Result<Image, Box<dyn error::Error>>
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fat/image.rs:94:34
[INFO] [stdout]    |
[INFO] [stdout] 94 |         -> Result<RootEntry, Box<error::Error>>
[INFO] [stdout]    |                                  ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 94 |         -> Result<RootEntry, Box<dyn error::Error>>
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/fat/image.rs:113:41
[INFO] [stdout]     |
[INFO] [stdout] 113 |         -> Result<(RootEntry, u16), Box<error::Error>>
[INFO] [stdout]     |                                         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 113 |         -> Result<(RootEntry, u16), Box<dyn error::Error>>
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/fat/image.rs:127:27
[INFO] [stdout]     |
[INFO] [stdout] 127 |         -> Result<(), Box<error::Error>>
[INFO] [stdout]     |                           ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 127 |         -> Result<(), Box<dyn error::Error>>
[INFO] [stdout]     |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/fat/image.rs:140:16
[INFO] [stdout]     |
[INFO] [stdout] 140 |         -> Box<Iterator<Item=(usize, u16)> + 'a>
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 140 |         -> Box<dyn Iterator<Item=(usize, u16)> + 'a>
[INFO] [stdout]     |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/fat/image.rs:178:27
[INFO] [stdout]     |
[INFO] [stdout] 178 |         -> Result<(), Box<error::Error>>
[INFO] [stdout]     |                           ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 178 |         -> Result<(), Box<dyn error::Error>>
[INFO] [stdout]     |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fat/root_entry.rs:40:50
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn filename(&self) -> Result<String, Box<error::Error>> {
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn filename(&self) -> Result<String, Box<dyn error::Error>> {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fat/root_entry.rs:56:27
[INFO] [stdout]    |
[INFO] [stdout] 56 |         -> Result<(), Box<error::Error>>
[INFO] [stdout]    |                           ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 56 |         -> Result<(), Box<dyn error::Error>>
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/fat/image.rs:185:13
[INFO] [stdout]     |
[INFO] [stdout] 185 |         let mut target_slice = &mut self.data_area[
[INFO] [stdout]     |             ----^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fatr` (bin "fatr") due to 14 previous errors; 30 warnings emitted
[INFO] [stdout] warning: field `reserved` is never read
[INFO] [stdout]   --> src/fat/root_entry.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub struct RootEntry {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     reserved: u16,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RootEntry` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e221e67409a5cdf663c2a536b73b56255bc75403e34286500204eccc042e50ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e221e67409a5cdf663c2a536b73b56255bc75403e34286500204eccc042e50ec", kill_on_drop: false }`
[INFO] [stdout] e221e67409a5cdf663c2a536b73b56255bc75403e34286500204eccc042e50ec
